common nettle, stinging nettle —  Urtica dioisa gracilis {nettle family — Urticaceae}
Flora of the Yukon Territory, Cody, p. 241a
 { 1/30 sec, f16.0} – {McIntyre Ck. college, Whitehorse, Yukon} – {11/08/09 Tuesday, August 11, 2009; 4:12:18 PM}